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Ultimate Zombie Defense
Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-12.
What reviewers agree on
45 of the 69 reviews raise this.
“Game is fun but gets ruined by randoms. Their needs to be an option where you can set it so people cant sell the stuff you buy. Random people join mid game then sell all your stuff just so you loose. makes long games…”
“not my style of game but it seems pretty good”
16 of the 69 reviews raise this.
“extremely basic. falls quite short of existing games like red nation or just about any game in the genre. not enough levels, not enough character progression, weak zombie animation to the point of having an option to…”
“Pretty fun short game that's a mix of siege and wave defense. There are multiple characters with skill trees as well. [h1] [b] The Good [/b] [/h1] + Pretty easy to 100% the achievements + Fun to mess around with the…”
3 of the 69 reviews raise this.
“Its a fun little tower defense/ co-op shooter. Easy to play and enjoyable. Nothing much. Sometimes, simplicity is all you need.”
“Its actually pretty fun, this is giving COD the mini game for zombies except you get to build with defenses. You also have several classes to choose each one giving special perks when you level up, and it gives a boss…”
3 of the 69 reviews raise this.
“Its cool cheap and fun”
11 of the 69 reviews raise this · 6 of them still recommend the game.
“The game is kindda fun but dead at the same time, the co-op version got less than 100 player and some russian i think, use glitch/hack (not sure) to enter a building. And they dont take any dmg, so if you enter their…”
“extremely basic. falls quite short of existing games like red nation or just about any game in the genre. not enough levels, not enough character progression, weak zombie animation to the point of having an option to…”
9 of the 69 reviews raise this · 8 of them still recommend the game.
“extremely basic. falls quite short of existing games like red nation or just about any game in the genre. not enough levels, not enough character progression, weak zombie animation to the point of having an option to…”
“Ultimate Zombie Defense is at least honest about its B-movie philosophy, offering simple gameplay that can hook you for several mindless gaming hours. Decimating hordes of zombies is certainly fun, but the limited…”
“Pretty fun short game that's a mix of siege and wave defense. There are multiple characters with skill trees as well. [h1] [b] The Good [/b] [/h1] + Pretty easy to 100% the achievements + Fun to mess around with the…”
7 of the 69 reviews raise this · 3 of them still recommend the game.
“Game is fun but gets ruined by randoms. Their needs to be an option where you can set it so people cant sell the stuff you buy. Random people join mid game then sell all your stuff just so you loose. makes long games…”
“The game is kindda fun but dead at the same time, the co-op version got less than 100 player and some russian i think, use glitch/hack (not sure) to enter a building. And they dont take any dmg, so if you enter their…”
6 of the 69 reviews raise this · 3 of them still recommend the game.
“extremely basic. falls quite short of existing games like red nation or just about any game in the genre. not enough levels, not enough character progression, weak zombie animation to the point of having an option to…”
“0/10 I don’t even know where to start. There’s literally nothing good here. Gameplay feels empty, boring, and repetitive after a few minutes. No polish, no fun factor, nothing that makes you wanna keep playing. And the…”
5 of the 69 reviews raise this · 2 of them still recommend the game.
“Game is fun but gets ruined by randoms. Their needs to be an option where you can set it so people cant sell the stuff you buy. Random people join mid game then sell all your stuff just so you loose. makes long games…”
“The game is kindda fun but dead at the same time, the co-op version got less than 100 player and some russian i think, use glitch/hack (not sure) to enter a building. And they dont take any dmg, so if you enter their…”
Counted across 69 English reviews, sampled to match this game's 85.1% positive rating · as of 2026-05-12
“The game is very good, but the experience can feel repetitive. However, I really enjoyed playing it with a friend, especially when you have a full group of four players”
— a player, Steam review · 6 hrs played“Top-down shooters are really not my thing, but this was free and it is good enough for what it is. You simply survive waves of zombies with dog and boss rounds, sometimes at the same time, to mix things up. You can buy and upgrade weaponry and build an actual base which is…”
— a player, Steam review · 2 hrs played“This top-down td game has a decent concept, but the overall qualitys nowhere near playable. Toxic players can join ur game too, they’ll straight up sell all ur stuff and ruin everything, makin the whole vibe even worse.”
— a player, Steam review · 3 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-05.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-10). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Fixed the muiltiplayer issues
Hello everyone. We do apologize about the multiplayer issues. It's fixed now and you can play online with your friends :)
Ultimate Zombie Defense 2 is Available Now!
Soldiers! The day is finally here - Ultimate Zombie Defense 2 is now available on Steam! It's time to jump straight into the action - team up, get creative and kill some zombies! Its taken 3 years to
UZD2 PUBLIC DEMO AND LIVE STREAMS >
Hello everyone! It is with great pleasure I can announce the UZD2 demo is now available to play throughout Steam's NEXT FEST! Of course, the demo only contains a taste of what's to come; there are man
Ultimate Zombie Defense 2 trailer
Greetings everyone! We bring to you today the Ultimate Zombie Defense 2 trailer. Get a sneak peek into the next chapter of our adventure as we unveil what's in store for you. Your support and anticipa
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-12.
| Genres | Action, Adventure, Casual, Strategy |
| Player tags | Action · Casual · Zombies · Online Co-Op · Tower Defense · Strategy · Gore · Adventure · Survival · Co-op · Top-Down Shooter · Multiplayer (SteamSpy community voting) |
| Features | Single-player · Multi-player · Co-op · Online Co-op · Steam Achievements · Steam Cloud · Steam Leaderboards · Family Sharing |
| Languages | English * , German * , Spanish - Spain * , Russian * , Simplified Chinese * , Dutch * , French * , Italian * , Polish * , Portuguese - Portugal * , Portuguese - Brazil * , Spanish - Latin America * , Traditional Chinese … |
| Achievements | 12 |
Minimum system requirements (PC)
Minimum: OS: Windows 10 Processor: 2.5GHz or Equivalent Memory: 4 GB RAM Graphics: Intel® HD Graphics 5000 DirectX: Version 11 Storage: 2 GB available space